package com.metarnet.Execution.business.ftp;
import java.io.File;
import java.io.IOException;
import java.text.ParseException;
import org.apache.log4j.Logger;
import com.enterprisedt.net.ftp.FTPClient;
import com.enterprisedt.net.ftp.FTPConnectMode;
import com.enterprisedt.net.ftp.FTPException;
import com.enterprisedt.net.ftp.FTPFile;
import com.enterprisedt.net.ftp.FTPTransferType;
import com.metarnet.Execution.Model.statics.FTP_information;
/**
*
ftp连接管理(使用apache commons-net-1.4.1 lib)
* 闫帆
*/
public class FTP_Client {
public static final Logger logger = Logger.getLogger(FTP_Client.class);
private FTPClient ftpClient = new FTPClient();
private static FTP_Client ftp_Client;
/**
* 单例模式，每个实例只能有一个FTP上传
* @return
*/
public static FTP_Client getThis()
{
if(ftp_Client==null)
{
ftp_Client=new FTP_Client();
}
return ftp_Client;
}
/**
* 打开到FTP的连接
* @return
* @throws IOException
* @throws FTPException
* @throws Exception
*/
public boolean ConnectionFTP() throws IOException, FTPException
{
if(!ftpClient.connected())
{
try {
ftpClient.setRemoteHost(FTP_information.getThis().getFTP_server());
ftpClient.setRemotePort(FTP_information.getThis().getFTP_port());
ftpClient.setControlEncoding("GB2312");
ftpClient.connect();
ftpClient.setTimeout(1200);
ftpClient.login(FTP_information.getThis().getFTP_username(), FTP_information.getThis().getFTP_password());
ftpClient.setType(FTPTransferType.BINARY);
ftpClient.setConnectMode(FTPConnectMode.ACTIVE);
logger.debug("FTP连接成功！");
} catch (IOException e) {
logger.error("FTP_IO连接失败：",e);
throw e;
} catch (FTPException e) {
logger.error("FTP连接失败：",e);
throw e;
}
}
return ftpClient.connected();
}
/**
*
ftp上传文件
* @param srcUrl 须上传文件
* @param targetFname 生成目标文件
* @throws Exception
public String uploadFile(String srcUrl,String targetFname) throws Exception{
try {
if(ConnectionFTP())
{
if(!ftpClient.existsDirectory(FTP_information.getThis().getFTP_UP_URL()))
{
ftpClient.mkdir(FTP_information.getThis().getFTP_UP_URL());
}
if(OpenDir(FTP_information.getThis().getFTP_UP_URL()))
{
ftpClient.setType(FTPTransferType.BINARY);//设置文件类型（二进制）
return ftpClient.put(srcUrl,targetFname); //上传
}
else
{
logger.debug("未能打开目录："+FTP_information.getThis().getFTP_UP_URL());
return "未能打开目录："+FTP_information.getThis().getFTP_UP_URL();
}
}
else {
logger.debug("FTP服务器未打开，不能进行上传操作");
return "FTP服务器未打开，不能进行上传操作";
}
} catch (Exception e) {
logger.error("FTP上传过程中出现异常:",e);
throw new Exception("FTP上传过程中出现异常",e);
}
}
/**
* 进入需要的目录
* @return
* @throws IOException
* @throws FTPException
* @throws Exception
*/
public boolean OpenDir(String dirname)
{
try {
String[] temp=dirname.split("/");
if(temp.length>0)
{
for (String tmp : temp) {
if(ConnectionFTP())
{
ftpClient.chdir(tmp);
}
}
}
else {
if(ConnectionFTP())
{
ftpClient.chdir(dirname);
}
}
return true;
} catch (IOException e) {
return false;
} catch (FTPException e) {
return false;
}
}
/**
* 获取文件列表
* @return
* @throws FTPException
* @throws IOException
* @throws ParseException
* @throws Excepti